In vitro shoot tip grafting in citrus species- A review

A retrospective overview of work done on the in vitro shoot tip grafting in citrus in the world was taken up. In vitro shoot tip grafting is the most reliable method to recover free citrus saplings from infected parental source. The technique of in vitro shoot tip grafting is a suitable method for the elimination of grafttransmissible diseasesin citrus. Preliminary studies showed that certain pathogens are difficult to be eliminate from mother plant like citrus exocortis and stubborn, which might be eliminated by a process of shoot tip grafting in-vitro. Plant obtained by micro-grafting do not have the same problems as nucellar plants such as reversion to the juvenile state, excessive thorniness, vigorous and upright habit of growth, slowness to fruiting, alternate bearing in early years and physical differences in fruit characteristics.